Nik Wallenda Walks a Tightrope across Niagara Falls (Video)

Daredevil Nik Wallenda became the first person to tightrope walk across Niagara Falls Friday night. Wallenda was tethered to a wire at the insistence of ABC which broadcasted the stunt live. He slowly walked 1,800 feet, six football fields, from the U.S. to Canada, 200 feet above the roiling Niagara River: